Carbon-remover for explosive-engines.



c. T. OHARA.

CARBON REMOVER FOR EXPLOSIVE mamas.

APPLICATION FILED JUNE 3, 1915- 1 9 1 83 483 Patented May 16, 1916.

2 SHEETSSHEET womatoz 67m. 7T07/am C. T. OHARAx CARBON REMOVER FOR EXPLOSIVE ENGINES.

APPLICATION FILED JUNE 3.1915.

1,1 83,483. Patented May 16, 1916.

2 SHEETS-SHEET 2- C/lw. ZWWQm @FFTQ.

\\ CHARLES T. OHARA. 0F BELLINGHAMJWASHINGTON, ASSIGNOR OF ONE-HALF 'IO .I-IARRY BRUXER. AND ONE-HALF TO CHARLES A. LILLESBURG, BOTH OF SPOKANE,

WASHINGTON.

CARBON-REMOVER FOR EXTLOSIVE-ENGINES.

Specification of Letters Patent.

Patented May 16, 1916.

Application filed June 3. 1915. Serial No. 31,812.

Y '0 all whom it may concern Be it known that'l. iL-unacs T. ()HARA, a citizen of the United States. residing at Bellingham. in the county of \Vhatcom and State of \Vashington. have invented certain new and useful Improvements in (arbou- Removers for llxplosive-llngines. of which the following is a specification.

This invention relates to improvements in devices for preventing the formation of and removing carbon deposits from the interior of the cylinder or cylinders of an explosive engine.

It is one of the objects of this invention to provide a supply of liquid or liquids of a character which will react when combined with the carbon to attack and remove carbon deposits from interior portions of -a cylinder of an explosive engine while the latter is in operation, and my invention provides for storing such liquids in suitably separated relation. together with means for allowing the liquids to combine and be fed or admitted to the engine cylinder.

A feature of the invention consists in connecting the supply of liquids with the en gine. through the air intake of the carbureter so that suction may be utilized to draw in a supply of carbon eradicating liquid at each induction intake of air into the carbu reter so as thereby to insure a supply of the eradicating liquid while the engine is in operation. the supply being automatically cut off when the engine is at rest.

In one embodiment of the invention the supply of liquid is controlled by a. valve which is actuated by suction and in another embodiment. a valve is provided which may be connected with the throttle lever or other controlling parts so as to open the valve whenever the engine is started. the valve being spring controlled and closed when the engine is stopped.

Of the several liquids that may be used in combination, one will be found to be of lighter specific gravitythan the other and therefore it is a feature of my invention to provide a valve which will not only arrest the flow of said liquids but which will also maintain them in sepa 'ated relation while the valve is closed so that the liquids can not combineamtil the valve is opened. Fur-. thermore, the provision of such a valve prevents the entrance of liquid of lighter speview on line 3-3 of Fi g. 2.

cific gravity into the compartment of liquld of heavier specific gravity and prematurely mixing therewith. \Vhile I prefer to use liquids which will only chemically react when brought into physical contact with the carbon deposit, still it is important to provide for a uniform supply of the different character of liquids and prevent one liquid from combining with the other prior to release of the liquids for entrance into the engine cylinder.

My invention not only relates to the apparatus, but also to the improved method of removing and preventing the formation of carbon deposits.

' Further features and objects of the invention will be more fully described in connection with the accompanying drawings and will be more particularly pointed out and ascertained in and by the appended claims.

In. the drawings:Figure 1, is a view in side elevation showing one form of the device of my invention applied to an automobile equipped with an explosive engine. Fig. 2. is a vertical sectional view of my improved tank and valve structure for containing and controlling the delivery of the eradicatingliquids. Fig. 3. is a sectional Fig. 4, is a view in elevation of a modified form of spring acs5 tuating and manually operable valve.

Like characters of reference designate similar parts throughout the different figures of the drawings.

As illustrated. 1 designates the dash of the automobile and 2 designates the cylinders of the engine. A carbureter is shown at 3 and the same is connected with the engine cylinders by a pipe 4L and a manifold 5. The carburetor is shown provided with an air intake 6 and a. throttle valve control- 3 ling lever 7 The lever 7 is connected with l a. rod 8 which may extend back of the dash and be operated in the usual manner.

Preferably mounted upon the dash 1, in any desirable manner. is a tank structure 9 shown secured at 10. The tank structure 9 is divided by a partition 11 into two separate compartments 12 and 13. Separate filling caps 14 and 15 are provided, one for each compartment. Near the bottom of the tank structure. and preferably in the bottom wall 16 thereof I form an opening 17 which communicates with both of the compartments 12 and 13. A valve fitting 18 is suitably secured to the tank structure and is provided with a bore divided by a diaphragm 19 to provide for two passages, one passage being designated at 20 and communicating with chamber 12 and the other passage being designated at 21 and communicating with chamber 13. The diaphragm l9 and the partition 11 are arranged for engagement in end to end rela tion so as to maintain the liquid contents of the compartments entirely separate. The

fitting 18 is provided with valve seats 22 and 23 against which the faces of a tapered valve closure 2 seat. The valve closure 24: tapers to a straight edge, indicated at 25, and the straight edge seats against the lower end of the diaphragm 19. The fitting is cut away or enlarged as indicated at 26 so that when the valve closure 24; is moved downwardly, the normally separated liquids descending through passages :20 and 21 will combine and flow through a discharge bore 27. The closure 24 is designed for actuation by piston suction which initiates sufficient pulling stress through the bore 27 to withdraw the closure "24 from the seated position shown in Fig. 2. A pin 28 entering a longitudinally disposed slot 29, in the closure 24:, will limit opening movement of the closure and hold the same against any slight rotary displacement such as would prevent the edge from seating against the lower edge of diaphragm 19. A spring 30 is interposed between the closure 26 and a screw plug 31 in such a manner as normally to seat the closure. The fitting is provided with a plug 32 to render interior parts accessible for cleaning, removal or renewal of parts and also to render the screw plug 31 normally inaccessible.

A duct 33 is connected with fitting 18 by a coupling 34 in which a suitable filtering material may be disposed. The duct 33 is shown extending through the dash 1 and with its delivery end 34 disposed within the suction zone of the air intake 6 of the carbureter I preferably extend the duct some slight distance into the air intake.

In the modified form shown in Fig. i, a valve 35 is provided which is of the rotary type and which is provided with a valve spindle 36 upon which an operating arm 37 is mounted. A controlling spring 38 is secured at 39 to the tank structure 9, and at 40 to arm 37 so as normally to move the arm into a valve closing position. An operating connection 41 is connected with the arm so as to be operating simultaneously with opening movement of the throttle or gas lever. This valve 35 is of the simple form and I have not shown interior portions thereof in detail.

While I do not Wish to be limited to any particular liquids, I have found that good results may be obtained by filling one compartment with wood alcohol and the other with kerosene. The feeding mechanism is such that only a limited quantity will be fed at each induction stroke of the piston and therefore it is desirable that the feed be continuous during operation of the engine. 'ith the foregoing mixture, it has been found in practice that previously formed carbon will be entirely removed after the engine has operated a. few hours and the dissolved carbon will be blown out from the exhaust. After the carbon has been removed from the cylinders. the use of water instead of alcohol in one of the compartments will act to prevent further formation of carbon.

It has been found that the use of my invention keeps the engine cool and saves gasolene and also affords a supply of uniform mixture in all kinds of weather thereby rendering the engine uniformly efiicient at all times and insuring perfect ignition.

My invention also consists in the method of supplying to the interior of an explosive engine cylinder. normally separated liquids of a character which will chemically react and combine to attack and remove carbon deposits. this method also including in a more specific definition the novel feature of inducing a flow of such carbon eradicating liquid into the cylinder. by induction initi ated from movement of the piston.

\Vhile I have herein shown and described a specific form of the apparatus and method of carrying out my invention I do not wish to be limited thereto except for such limitations as the claims may import.

I claim 1. In a device for removing carbon from the interior of an explosive engine cylinder, :1 carbureter delivering to the engine cylinder and having an air intake, means containing liquids in separated relation of a character to chemically react when in contact with the carbon to remove the same or prevent its formation on the interior of the engine cylinder, and means for combining and conveying the combined liquids to the carbureter for suction action therethrough into th engine cylinder, substantially as described.

2. In a device for removing carbon from the interior of an explosive engine cylinder, a carbureter delivering to the engine cylinder and having an air intake, means containing liquids in separated relation of a character to chemically react when in contact with the carbon to remove the same or prevent its formation on the interior of the engine cylinder, and valve controlled means for permitting the combination of and conveying the combined liquids to the air intake for suction action through the carbureter into the engine cylinder, substantially as described. 1

8. In a device for removing carbon from the interior of an explosive engine cylinder, means containing liquids in separated relation of a character to chemically react when in contact with the carbon to remove the same or prevent its formation on the interior of the engine cylinder, and means for conveying said liquids into the induction range of the engine cylinder for suction of the liquids into said cylinder by piston movement, substantially as described.

4. In a device for removing carbon from the interior of an explosive engine cylinder, a carburetor delivering to the engine cylinder and havin an air intake, means containing liquids in separated relation of a character to chemically react when in contact with the carbon to remove the same or prevent its formation on the interior of the engine cylinder, a duct connected with said means for conveying the liquids to the engine structure, and a spring controlled valve normally acting to arrest How of said liquids while the engine is at rest, substantially as described.

5. In a device for removing carbon from the interior of an explosive engine cylinder, a carbureter for the engine having an air intake, a tank having a partition dividing the same into separate compartments to contain in separated relation liquids of a character to chemically react when combined and brought into contact with the carbon in the cylinder to remove the carbon, a valve fitting having valve seats and connected with said tank and provided with a diaphragm dividing said fitting into separate passages, one passage communicating with one compartment and the other passage communi cating with the other compartment and the diaphragm of said fitting engaging said partition to maintain said liquids in separated relation, a valve closure movable in said fitting into closure engagement with said diaphragm and said valve seats to arrest the flow of said liquids from said compartments and maintain the said liquids in se arated relation, and a duct leading from sai fitting to within suction range of the air intake of the carbureter for suction opening actuation of the valve to feed the combined liquids into the engine cylinder, substantially as described.

6. The herein described method of removing or preventing the formation of carbon in an explosive engine cylinder which consists, in maintaining innormally separated relation liquids of a character to chemically react when combined and brought into contact with the carbon to remove the latter or prevent its formation, and in subjecting said liquids to suction action of the engine to induce a flow of the combined liquid into said cylinder, substantially as described.

7. In a device for removing carbon from the interior of an explosive engine cylinder, tank compartments adapted to contain liquids of a character to chemically react when combined and brought into contact with the carbon in the cylinder, a duct open to suction action of the engine cylinder and communicating with said tank compartments, and valve means for closing flow of all of said liquids to said duct and preventing co-mingling of said liquids with each other when said means is in a closed position, substantially as described.

8. In a device for removing carbon from the interior of an explosive engine cylinder, tank compartments adapted to contain liquids of a character to chemically react when combined and brought into contact with the carbon in the cylinder, a duct open to suction action of the engine cylinder and communicating with said tank compartments, and valve means having a plurality of seating areas for closing flow of all of said liquids to said duct and preventing comingling of said liquids with each other when said means is in a closed position, substantially as described.

In testimony whereof I aflix my signature in presence of two witnesses.

CHARLES T. OHARA.

Witnesses: THOS. R. WATERS,

S. S. GOODRICH. 

